These high-temperature furnaces are perfectly suited for sintering of translucent zirconia units. The special molybdenum discilicide heating elements offer best possible protection against chemical interaction between charge and heating elements. The zirconia units are positioned in ceramic saggars. Up to three saggars can be stacked into the high-temperature furnace.

Tmax 1650 °C

Furnace chamber with a volume of 1 or 2 liters

Special heating elements made of molybdenum disilicide offer best possible protection against chemical interaction between charge and heating elements

High-Temperature Bottom Loading Furnace up to 1650 °C with Integrated Speed Cooling System for Sintering of Translucent Zirconia

Due to its maximum temperature of 1650 °C and the large chamber the high-temperature bottom loading furnace is perfectly suited for sintering of translucent zirconia. The electrically driven lift-bottom provides for easy charging. The heating all around the cylindrical furnace chamber provides for a good temperature uniformity.

By using special heating elements made of molydenum disilicide crowns and bridges are protected against chemical contamination at the best. The charge will be placed in saggars made of technical ceramics. Up to three saggars on top of each other guarantee high productivity.

The high-temperature bottom loading furnace is additionally equipped with rapid cooling device. The furnace automatically opens stepwise for faster cooling. Depending on the charge and the type of saggars process times shorter than two hours can be realized.

Tmax 1650 °C

High-quality heating elements made of molybdenum disilicide offer best possible protection against chemical interaction between charge and heating elements

High-Temperature Furnace with SiC Rod Heating for Sintering Zirconia up to 1550 °C

HTCT 01/16

HTCT 01/16

Furnace chamber with high-quality fiber materials and SiC heating rods on both sides of the furnace

Saggars with top lid

Designed as table model with SiC heating rods, this model offers numerous advantages when sintering zirconia at an attractive price. The large heating chamber and fast heating-up times make this model a good selection for the CAD/CAM processing of zirconia. The furnace controller can be freely programmed for the individual sintering of the zirconia material. The high-temperature furnace is moreover designed for connection to the single-phase mains supply.

Tmax 1550 °C

Working temperature 1500 °C, increased wear and tear must be expected in case of working at higher temperatures

Single-phase connection

Furnace chamber insulation made of non-carcinogenic fiber materials

Housing made of sheets of textured stainless steel

Dual shell housing for low external temperatures and high stability

Adjustable air inlet

Type S thermocouple

Controller C450

Switching system with solid-state-relays, power tuned to the SiC rods

Easy replacement of heating rods

Defined application within the constraints of the operating instructions

Accessories for Sintering Furnaces

For charging zirconia workpieces charge saggars are recommended. A saggar basically consists of the sintering dish as base and the spacer ring with ventilation openings. The material is highly resistant to temperature fluctuations and can be used for processes with short heat-up and cool-down times.

When charging the furnace it must be ensured that the lower charge carrier is generally resting on the spacer ring. This provides for air-circulation under this carrier and improves the temperature uniformity. It is recommended to cover upper saggar with another sintering dish as lid.

The starter set consists of a charge saggar, a spacer ring as a base and a second sintering dish as lid. The use of additional saggars (sintering dish and spacer ring) allows charging on additional levels. Both furnace models are designed to get charged with up to three charge saggars.

Number of required charge levels in overview:

1 level: Starter set which includes 2 sintering dishes and 2 spacer rings

Placing the zirconia product in charge saggars provides for optimum utilization of the furnace chamber. Up to three saggars can be stacked in the furnaces. The integrated air slots ensure a better air circulation of the charge. The upper saggar can be closed with a separate ceramic lid.